ERP add 4 radiological ops Flashcards
1.1 What shields beta rays?
Approx 1 inch of plastic, aluminum, glass ( range of beta rays is up to 10 feet)
1.1. What shields alpha rays?
Intact skin, inches of air, sheet of paper ( range of alpha rays are 1-2 inches)
1.1 What shields gamma rays?
Several inches of lead, concrete, steel, a foot of dirt or water. Range of gamma rays is several hundred feet.
1.1 What shields neutron rays ?
High hydrogen content material I.e. 3 feet of water , 1 foot of concrete or 10 inches of plastic. The range of neutron rays is several hundred feet.
1.4.3 what does the rad 50 alarm at? The rad 50 is able to measure radiation levels up to ____ mr/hr?
The rad 50 alarms at 1 mr/hr
The rad 50 measures radiation levels up to 50 mr/hr
Note: the Ludlum reads up to 100 rem/hr. the SIAC dosimeters and Canberra mini radiacs can read up to 999 rem/hr
- The normal background radiation rate for NYC is?
0.02 mr/hr to 0.05 mr/hr
3.2 how long does it take for radiation fallout from a improvised nuclear device to occur?
Approx 15 mins. Units should not enter the area of detonation until 15 mins past detonation when presence of radiation can then be detected and monitored
6.2.2
What is the priority of decontamination of victims at a radiological emergency?
- patients with life threatening injuries that effect ABCs
- patients that are most severely contaminated but are not symptomatic
- discretion for the following ie pregnant women, children, seniors, non life threatening injuries
Add 4a p2 “annual background readings”
Using the rad 50, all units monitor area ifo qtrs for _____ mins.
Info is then recorded on the _______ report. Elevated readings above .o5 mr/hr but less than .9 mr/hr , officer forwards copy of _____ report to ____________.
-5 mins
-rad 3 report “radiation background monitoring chart”
- rad 2 titled “ elevated background radiation readings
- forward to hazmat ops
A copy of this data chart forwarded to battalions which forward to division who then forwards to boro then to bur of fire ops .
Add 4a maintenance of rad 50 p 3
1. Requires that a 9 volt battery be changed every 3 mths on jan 1, April 1, July 1 and oct 1 An entry shall be made in the office record journal to include what 4 things?
- the date of maintenance
- serial number of rad 50
-Name of FF making the change - name of company officer supervising the change
Co’s shall use the firehouse expense fund to purchase 9 volt batteries .
Add 4b Geiger Counter CDV 700 p 5
This instrument should be inspected weekly on ________ at ________hrs.
The Geiger counter should be inspected weekly on Wednesdays at 2030 hrs All members will participate in this procedure
Add 4b Geiger counter CDV 700 p5
What solvent should u use to clean ?
- defects reported to?
-Batteries stored?
- do not use any solvents to clean instrument
- report defects to radiological unit at BOT
- Batteries must be removed when not in use
- do not immerse in water
Add 4 b Geiger counter CDV 700
What rays can this instrument detect?
The probe consists of a Beta-Gamma sensitive tube With the window closed only gamma radiation reaches the Geiger tube . If window is opened by rotating the shell, both beta and gamma radioactivity affect the tube
Geiger Counter - Ludlum 14 C p 7
- What will it detect?
- Does it respond instantaneously?
- May detect alpha, beta, or gamma radiation depending on the probe attached to the meter
- Survey meters do not respond instantaneously to changes A period of at least 15 secs is needed
Add 4 D ultraradiac operational test 6.3
Press and hold clear/test key until display test sequence begins.
- What does a blinking 9 indicate?
- what does a blinking 0 indicate ?
- a blinking 9 indicates ultraradiac passed all tests
- a blinking 0 indicates an instrument failure ; place oos
